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21309 E Double Row Spherical Roller Bearing
21309 E Double Row Spherical Roller Bearing

21309 E Double Row Spherical Roller Bearing

The 21309 E is a double-row spherical roller bearing with a 45mm bore and 100mm outer diameter, crafted from robust chrome steel. It handles combined loads up to 29000 lbf and operates smoothly at speeds up to 8500 RPM.

Its open design allows for easy lubrication, while the steel cage ensures durability under heavy use. The bearing performs reliably in temperatures ranging from -30°C to 200°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for industrial machinery or gear systems where combined loads and high speeds are common.

Weighing 0.98kg, it offers a sturdy yet manageable solution for demanding applications. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Product Parameters

  • Part Number 21309 E
  • Brand TFL
  • Interchangeable SKF
  • Size 45 x 100 x 25 mm
  • Bore Dia 45 mm
  • Bore Dia Tolerance -0.012mm to 0
  • Outer Dia 100 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 25 mm
  • Width Tolerance -0.06mm to 0
  • Shoulder Dia Of Inner Ring 65.3 mm
  • Shoulder/Recess Dia Of Outer Ring 88 mm
  • Width Of Lubrication Groove 6 mm
  • Diameter Of Lubrication Hole 3 mm
  • Chamfer Dimension min.1.5 mm
  • System of Measurement Metric
  • Radial run-out Standard
  • Bearing Type Roller
  • Roller Bearing Type Spherical
  • Bore Type Cylindrical
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Cage Material Steel
  • Dynamic Radial Load 29000 lbf
  • Static Radial Load 28551 lbf
  • Max Speed 8500 rpm
  • Lubrication Required
  • Temperature Range -30° to 200 °C
  • Radial Clearance CN
  • RoHs Compliant
  • REACH Compliant
  • Weight 0.98 kg
  • Price (US$) 38.52

Features

Performance Features of 21309 E Bearing

21309 E Bearing is built with chrome steel rings and rollers, offering robust resistance to combined loads.
Its dynamic radial load capacity reaches 29000 lbf, ensuring reliable operation in demanding conditions.

The double-row spherical roller design allows for slight misalignment, improving performance under stress.
With a maximum speed of 8500 rpm, it balances durability and efficiency in high-speed applications.

21309 E Bearing operates in temperatures from -30° to 200°C, making it suitable for varied environments.
The steel cage maintains roller alignment, reducing wear and extending service life.

Application

Industrial Uses of 21309 E Bearing
21309 E Bearing is commonly used in heavy machinery like crushers and vibrating screens, where its double-row design handles combined loads effectively. The chrome steel construction ensures durability even in demanding industrial environments.

What Makes 21309 E Bearing a Preferred Choice?
In automotive applications, 21309 E Bearing supports components like differential systems, offering reliable performance under high radial loads. Its metric sizing makes it a versatile fit for various vehicle designs.

Built for Heavy-Duty Use: 21309 E Bearing
For conveyor systems, 21309 E Bearing’s spherical roller design accommodates misalignment, reducing wear and tear. The open seal type allows for easy lubrication, extending service life in continuous operations.

Medical vs Industrial: Where 21309 E Bearing Excels
While not typical for medical devices, 21309 E Bearing shines in industrial settings like paper mills, where its high-temperature tolerance and load capacity are crucial. The steel cage adds extra strength for long-term use.

Automotive vs Aerospace: Applications of 21309 E Bearing
21309 E Bearing is more suited for automotive drivetrains than aerospace due to its robust load handling. Its 8500 rpm max speed and combined load capacity make it ideal for heavy vehicles and off-road equipment.

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